Fig. 6
From: Evolution of the facial musculature in basal ray-finned fishes
Cranial musculoskeletal system of Lepisosteus platostomus, USNM 54983; left lateral view; maxillary, circumorbital, and cheek bony series removed. a Superficial musculature. b Deeper musculature; dorsoposterior portions of preopercle, accessory laminar tendons of the intersegmental aponeurosis, pars sphenoidalis, pars malaris, and pars stegalis of adductor mandibulae additionally removed. Abbreviations: AM, adductor mandibulae; CMD, constrictor mandibularis dorsalis. Color code: Salmon, muscle; sand, bone; blue, cartilage; white, tendon or ligament (regular connective tissue); dark grey, irregular connective tissue